Patents by Inventor Vladlen M. Shtanko

Vladlen M. Shtanko has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electrolyte for electrochemical polishing of articles made of titanium and titanium alloys
    Patent number: 4220509
    Abstract: Electrolyte for electrochemical polishing of articles made of titanium and titanium alloys contains 45-70 wt.-% sulphuric acid, 4-20 wt.-% nitric acid, 20-35 wt.-% hydrofluoric acid, 0.4-1.9 wt.-% sodium salt of L-sulphocarboxylic acid containing 17 to 20 atoms of carbon in combination with 0.1-1.6 wt.-% sodium salt of carboxylic acid containing 17 to 20 atoms of carbon or 1-2 wt.-% alkyl sulphoureid, 4-20 wt.-% water.The present invention increases by 20% the dispersive capacity of the electrolyte which produces a high surface finish on the article, uniformity of the electric potential and improves corrosion resistance of the treated article.
    Type: Grant
    Filed: July 30, 1979
    Date of Patent: September 2, 1980
    Inventors: Vladlen M. Shtanko, Pavel P. Karyazin, Sergei N. Sirotkin, Jury A. Perimov, Vladimir F. Udaltsov, Nina A. Shut, Natalya N. Khukhareva